EP3205880A4 - Internal gear pump - Google Patents

Internal gear pump Download PDF

Info

Publication number
EP3205880A4
EP3205880A4 EP14903766.5A EP14903766A EP3205880A4 EP 3205880 A4 EP3205880 A4 EP 3205880A4 EP 14903766 A EP14903766 A EP 14903766A EP 3205880 A4 EP3205880 A4 EP 3205880A4
Authority
EP
European Patent Office
Prior art keywords
internal gear
gear pump
pump
internal
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14903766.5A
Other languages
German (de)
French (fr)
Other versions
EP3205880A1 (en
EP3205880B1 (en
Inventor
Noritaka Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyooki Kogyo Co Ltd
Original Assignee
Toyooki Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyooki Kogyo Co Ltd filed Critical Toyooki Kogyo Co Ltd
Publication of EP3205880A1 publication Critical patent/EP3205880A1/en
Publication of EP3205880A4 publication Critical patent/EP3205880A4/en
Application granted granted Critical
Publication of EP3205880B1 publication Critical patent/EP3205880B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/103—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
EP14903766.5A 2014-10-09 2014-10-09 Internal gear pump Active EP3205880B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/077073 WO2016056103A1 (en) 2014-10-09 2014-10-09 Internal gear pump

Publications (3)

Publication Number Publication Date
EP3205880A1 EP3205880A1 (en) 2017-08-16
EP3205880A4 true EP3205880A4 (en) 2018-04-04
EP3205880B1 EP3205880B1 (en) 2022-07-27

Family

ID=55652759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14903766.5A Active EP3205880B1 (en) 2014-10-09 2014-10-09 Internal gear pump

Country Status (4)

Country Link
US (1) US10066620B2 (en)
EP (1) EP3205880B1 (en)
CN (1) CN106605065B (en)
WO (1) WO2016056103A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6077373B2 (en) * 2013-04-11 2017-02-08 豊興工業株式会社 Internal gear pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077059A (en) * 1997-04-11 2000-06-20 Mitsubishi Materials Corporation Oil pump rotor
JP2004197670A (en) * 2002-12-19 2004-07-15 Mitsubishi Materials Corp Internal oil pump
EP3205881A1 (en) * 2014-10-07 2017-08-16 Toyooki Kogyo Co., Ltd. Internal gear pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1863335A (en) * 1922-12-20 1932-06-14 Hill Compressor & Pump Company Rotary pump
US2091317A (en) * 1934-10-13 1937-08-31 Myron F Hill Gear tooth curve
US2960884A (en) * 1954-11-30 1960-11-22 Hill Entpr Inc Rounded tooth tips for pointed rotoid teeth
US3709055A (en) * 1971-01-04 1973-01-09 L Grove Gear tooth profile
US5226798A (en) * 1989-11-17 1993-07-13 Eisenmann Siegfried A Gear ring pump for internal-combustion engines and automatic transmissions
JP3741175B2 (en) * 1997-01-27 2006-02-01 三菱自動車工業株式会社 Internal gear pump
DE10208408A1 (en) 2002-02-27 2003-09-11 Schwaebische Huettenwerke Gmbh gear teeth
JP4557514B2 (en) 2003-07-15 2010-10-06 住友電工焼結合金株式会社 Internal gear pump and inner rotor of the pump
CN2924081Y (en) * 2006-06-29 2007-07-18 湖南文理学院 Cycloidal two-phase cam movable tooth pump
JP4792342B2 (en) * 2006-07-19 2011-10-12 日立オートモティブシステムズ株式会社 Internal gear pump and power steering device
JP5886601B2 (en) * 2011-11-08 2016-03-16 株式会社山田製作所 Pump rotor
JP5916078B2 (en) * 2011-12-07 2016-05-11 株式会社ジェイテクト Inscribed gear pump
JP5561287B2 (en) * 2012-01-25 2014-07-30 住友電工焼結合金株式会社 Outer rotor tooth profile creation method and internal gear pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077059A (en) * 1997-04-11 2000-06-20 Mitsubishi Materials Corporation Oil pump rotor
JP2004197670A (en) * 2002-12-19 2004-07-15 Mitsubishi Materials Corp Internal oil pump
EP3205881A1 (en) * 2014-10-07 2017-08-16 Toyooki Kogyo Co., Ltd. Internal gear pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016056103A1 *

Also Published As

Publication number Publication date
WO2016056103A1 (en) 2016-04-14
US20170276131A1 (en) 2017-09-28
EP3205880A1 (en) 2017-08-16
CN106605065A (en) 2017-04-26
CN106605065B (en) 2018-07-13
EP3205880B1 (en) 2022-07-27
US10066620B2 (en) 2018-09-04

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